s2000 high flow or decat

[tamay_s2k]

hi guys
ive got stock s2k exhaust n headers in mine and havent really bothered changing it due to the "crappy hp gain"
i was thinking of just free flowing the cat. Ive got high flow mufflers on the car and thats actually changed the cars characteristics quite a bit which im happy with. By running a testpipe or a 100CEL high flow cat..would i c anymore gains or will i just lose heaps of back pressure and lose hp because of this?

[garett]

would be hard to tell as your setup isnt complete (ie headers etc) it might just make it more droney without any real gains

if i were you i would have a test pipe made at an exhaust shop, just simple mild steel with a flange either end. i cant see it being more than $100
and if its not to your liking take it out and sell it.

i thought you were selling your car?

[zhong]

High flow cats change your "exhaust characteristics" quite some bit.. Back in the day, I changed mine and it immediately became deeper and more "rumbly". Didn't do much performance wise (not by feel anyway).

I thought you were going turbo?

[vyets]

I ran a test pipe on a stock exhaust before, just makes it sound raspy and shit LOL. As for power I have no idea I can't feel anything with any mods my butt dyno is broken haha

[drsilliez]

i thought you were selling your car?

yeah i thought i saw ur add on carsales a few weeks back. not there anymore...

and qn: is there any point in changing the exhaust/catback without doing headers?

[vyets]

well if you change your header but leave everything else stock it will have a bottleneck effect basically rather you change the end first. Though there probably isn't enough of a difference to notice.

Back pressure is overrated :P

[blackouT]

So if you run either a High flow cat or a test pipe, both will increase the loudness of ur car whist improving flow?

[jrstyles]

Stock cat and exhaust are pretty decent already they arent THAT restrictive. To Blackout i think a straightpipe would be louder and improve flow for obvious reasons whereas a highflow cat still has restrictions.
My setup was mugen headers, buddyclub prospec 3 exhaust. I sold off the exhaust first and ran stock with a testpipe and as vyets said it sounded like shit. So i found a stock cat and ran it with the mugen headers and it sounded pretty decent. I sold my headers and now im running pretty much stock everything lol. IMO if you want sound but no power change the mufflers, if you want power but no sound then your looking in the wrong place, change ya diff instead, and if you want the best of both worlds then change the whole system but bangforbuck, its not worth it.

[tanner]

anyone used a berk hiflow cat, the price seems ok when compared with most ?

[tamay_s2k]

Stock cat and exhaust are pretty decent already they arent THAT restrictive. To Blackout i think a straightpipe would be louder and improve flow for obvious reasons whereas a highflow cat still has restrictions.
My setup was mugen headers, buddyclub prospec 3 exhaust. I sold off the exhaust first and ran stock with a testpipe and as vyets said it sounded like shit. So i found a stock cat and ran it with the mugen headers and it sounded pretty decent. I sold my headers and now im running pretty much stock everything lol. IMO if you want sound but no power change the mufflers, if you want power but no sound then your looking in the wrong place, change ya diff instead, and if you want the best of both worlds then change the whole system but bangforbuck, its not worth it.

thanks man
yea my diff just blew up a week ago
doing a full rebuild now with 4.44 gears and kaaz 1.5 way LSD
should have all my parts arrive in a week or 2